If you want to run a hot organic mix, go heavy on the plant based amendments, us Bloodmeal for N but go easy, and go light on guanos if you use them, they are very strong. I ditched guanos for chicken manure, its not as hot, but still high in N, etc. I mix 2 cups of composted chicken manure to 5 gallons of composted cow manure. Some plants may still be sensitive to it. You can also ditch all but the cow manure and up the plant based nutrients, it works great and you can usually plant in it directly. Top dress at week 4 with a little blood meal and have no N problems. I also ad Azomite into fresh soil because it preps the soil for re-cycling. The biggest problem with recycled soil in micro-nutrient depletion and it takes months for good, organic soil to break down the minerals, contrary to what most gardeners think.